Tests a user's permissions for the file or directory specified by path. The mode argument is an optional integer that specifies the accessibility checks to be performed. mode should be either the value fs.constants.F_OKor a mask consisting of the bitwise OR of any of fs.constants.R_OK,fs.constants.W_OK, and fs.constants.X_OK (e.g.fs.constants.W_OK | fs.constants.R_OK). Check File access constants for possible values of mode.

Asynchronously append data to a file, creating the file if it does not yet exist. data can be a string or a Buffer.

Changes the permissions of a file.

Changes the ownership of a file.

Asynchronously copies src to dest. By default, dest is overwritten if it already exists.

Asynchronously copies the entire directory structure from src to dest, including subdirectories and files.

Changes the ownership on a symbolic link.

Creates a new link from the existingPath to the newPath. See the POSIX link(2) documentation for more detail.

Equivalent to fsPromises.stat() unless path refers to a symbolic link, in which case the link itself is stat-ed, not the file that it refers to. Refer to the POSIX lstat(2) document for more detail.

Changes the access and modification times of a file in the same way as fsPromises.utimes(), with the difference that if the path refers to a symbolic link, then the link is not dereferenced: instead, the timestamps of the symbolic link itself are changed.

Asynchronously creates a directory.

Creates a unique temporary directory. A unique directory name is generated by appending six random characters to the end of the provided prefix. Due to platform inconsistencies, avoid trailing X characters in prefix. Some platforms, notably the BSDs, can return more than six random characters, and replace trailing X characters in prefix with random characters.

Opens a FileHandle.

Asynchronously open a directory for iterative scanning. See the POSIX opendir(3) documentation for more detail.

Reads the contents of a directory.

Asynchronously reads the entire contents of a file.

Reads the contents of the symbolic link referred to by path. See the POSIX readlink(2) documentation for more detail. The promise is fulfilled with thelinkString upon success.

Determines the actual location of path using the same semantics as thefs.realpath.native() function.

Renames oldPath to newPath.

Removes files and directories (modeled on the standard POSIX rm utility).

Removes the directory identified by path.

Creates a symbolic link.

Truncates (shortens or extends the length) of the content at path to lenbytes.

If path refers to a symbolic link, then the link is removed without affecting the file or directory to which that link refers. If the path refers to a file path that is not a symbolic link, the file is deleted. See the POSIX unlink(2) documentation for more detail.

Change the file system timestamps of the object referenced by path.

Returns an async iterator that watches for changes on filename, where filenameis either a file or a directory.

Asynchronously writes data to a file, replacing the file if it already exists.data can be a string, a buffer, an AsyncIterable, or an Iterable object.

Changes the permissions on a symbolic link.